Air freshener



FIG. 1 is a top perspective view of an air freshener in accordance with the present design;

FIG. 2 is a bottom plan view of the design;

FIG. 3 is a first side elevation view of the design;

FIG. 4 is a second side elevation view of the design;

FIG. 5 is a third side elevation view of the design;

FIG. 6 is a fourth side elevation view of the design; and,

FIG. 7 is a top plan view of the design.

The broken lines in the drawing figures indicate features that form no part of the claimed design. 

CLAIM The ornamental design for an air freshener, as shown and described. 